Ben, Eric and Peter went shopping. Ben and Eric spent a total of $282. Ben and Peter spent $658 altogether. Peter spent 9 times as much as Eric.
- How much did Eric spend?
- How much did Ben spend?
(a)
Amount that Ben spent = B
Amount that Eric spent = E
Amount that Peter spent = P
B + P = 658
B + E = 282
E = 1 u
P = 9 x 1 u = 9 u
Amount that Peter spent more than Eric
= 9 u - 1 u
= 8 u
8 u = 658 - 282
8 u = 376
1 u = 376 ÷ 8 = 47
Amount that Eric spent
= 1 u
= $47
(b)
Amount that Ben spent
= 282 - 47
= $235
Answer(s): (a) $47; (b) $235